Upper uniting machine



March 7, 1939. B w. FREEMAN 2,149,594

UPPER UNITING MACHINE Filed Sept. 19, 1955 4 Sheets-Sheet l March 71939. 5 w FREEMAN 2,149,594

UPPER UNI'IING MACHINE Filed Sept. 19, 1955 4 Sheets- Sheet 2 March 7;1939. 5 w FREEMAN 2,149,594

UPPER UNITING MACHINE Filed Sept. 19, 1935 4 Sheets-Sheet 3 I 55w Amy M6965/14 /v March 7, 1939. B w. FREEMAN UPPER UNITING MACHINE Filed Sept.19, 1935 4 Sheets-Sheet 4 Patented Mar. 7, 1939 PATENT OFFICE UPPERUNITING MACHINE Benjamin W. Freeman, Cincinnati, Ohio ApplicationSeptember 19, 1935, Serial No. 41,232

16 Claims.

This invention relates generally to shoe making machinery, andparticularly to a machine adapted tomaintain the various parts which goto form an upper in their proper relative positions during the time inwhich the cement or glue employed for securing the various sections issetting.

It is well-known that when the various parts of an article are intendedto be secured together by means of cement or glue, it is desirable thatthe various parts should be clamped or similarly retained in theirdesired positions during the process of setting of the cement or glue.This general rule is applicable to the manufacture of shoes as Well asother articles in which the parts are secured by cement, since thevarious portions of a shoe such as, for instance, those which go to makean upper may consist of quite a number of separate and individual partswhich must be united before the finished upper is ready for the shoeforming operations, such as are well-known in the art. For instance,under some circumstances, it is preferable to secure the various partsof the upper, including the lining and doubler, together by cement, suchas securing the quarter to the vamp, or securing an inlay such as iscommon practice, especially in ladies shoes.

The provision of a suitable clamp for maintaining the various parts of ashoe upper in their proper alinement during the setting of the cement orglue involves not only the provision of a device for adequatelymaintaining the parts in their desired position, but also involves theprovision of such means as will have no tendency to mar or deface thesurfaces of the various upper parts; it being realized that the leatheror other material employed in the uppers of shoes of this character isoften of a very delicate nature such as would be easily scratched orscarred by slight inadvertence or negligence of a worker, and as suchwould render the finished product objectionable to the user. 7

The object of this invention, generally stated, is to provide a suitableclamp for maintaining shoe uppers in their alined positions while the jcement or glue employed to secure the parts toto the work to be securedthrough a flexible dia-' phragm.

Another object of this invention is to provide a clamp in which an airbag is expanded under pressure against the work to be clamped.

A further object of this invention is to provide. a machine having aplurality of clamps for maintaining the various parts of a shoe upper intheir proper alinement during the process of y ng.

A further object of this invention is to provide such a machine in whichthe various clamps will be automatically opened upon reaching apredetermined position.

A more specific object of this invention is to provide a machine havinga plurality of clamps and operating mechanism therefor adapted toadvance the machine so as to stop the same when :he successive clampsreach a particular sta- Still another object of this invention is toprovide such a machine having a device by which the clamp may beregulated while at the work receiving station.

Still another object of this invention is to provide a control mechanismfor the machine of this invention which is movable through various zonesto eifect, respectively, the regulation of the clamps and theadvancement of the machine.

Other objects will become apparent to those skilled in the art when thefollowing description is read in conjunction with the accompanyingdrawings, throughout the various views of which like referencecharacters denote the same parts, and in which:

Figure 1 is a View in side elevation of a machine having thereon aplurality of the clamps constructed in accordance with this inventionand provided with an operating mechanism in accordance with thisinvention;

Figure 2 is a view in end elevation of the machine illustrated in Figure1;

Figure 3 is an enlarged view in end elevation of a machine constructedin accordance with this invention, illustrating the work in supportedposition within the clamps;

Figure 4 is a plan View of the clamp constructed in accordance with thisinvention;

Figure 5 is a view in side elevation of the clamp;

Figure 6 is a view in elevation of the opposite side of a clampconstructed in accordance with this invention;

Figure 7 is a detail View in side elevation of a control device for theclamps;

Figure 8 isa plan view of the control device;

Figure 9 is a view in side elevation of the clutch and driving mechanismfor a machine constructed in accordance with this invention;

Figure 10 is an end view thereof; and

Figure 11 is an end elevation of the clamp constructed in accordancewith this invention.

In accordance with this invention, a suitable carrier preferably in thenature of a rotatable wheel is provided about its periphery with aplurality of clamps, each of which is adapted to receive a shoe upperafter the various parts have been placed in their proper alinement andcemented. Any number of such clamps may be provided about the carrierand are preferably equally spaced therearound, it being understood thatthe carrier may be of any desirable size so as to accommodate thedesired number of clamps. Suitable mechanism is provided for moving thecarrier and stopping the same at a particular station to be designatedhereinafter as the work re ceiving position. If the carrier takes theform of a wheel, as in the illustrated embodiment of this invention,suitable mechanism is preferably provided for advancing the carrierthrough a sulficient angle to bring the next succeeding clamp into thework receiving position. Furthermore, suitable mechanism is preferablyprovided for opening the clamp as it approaches the work receivingposition, such mechanism being releasable to permit the clamp to close,and in the illustrated embodiment of this invention this mechanism iseffective to initiate movement of the carrier at the same time that theclamp is released. Moreover, it is often desirable that the clamp may beregulated or opened several times while the operator is inserting thework therein, in order to insure that the work is properly alined beforethe full pressure of the clamp is applied to the work, and accordingly,this invention contemplates the provision of means for regulating theposition of the clamp and governing the application of pressure therebywhile the carrier is at rest and the particular clamp is in the workreceiving position.

Referring now to the drawings for a description of an illustrativeembodiment of this invention, a suitable support comprising uprightmembers l and horizontal members 2 is provided for supporting the movingparts of the apparatus. Substantially centrally of the upper horizontalmember 2 a suitable bearing 3 is provided for the reception of a shaft4, which is rotatable therein. A wheel 5 is mounted upon the shaft 4,and preferably secured thereto for rotation therewith, as is likewise aratchet wheel 6. The ratchet wheel 6 is preferably sufficiently spacedfrom the wheel 5 to permit access to the operating mechanism and isadapted to receive the driving force for the wheel 5 from a suitableoperating mechanism to be later described.

The wheel 5 is provided about its periphery with a plurality of clampsI, constructed in accordance with this invention, so that the wheel 5may be rotated to carry the respective clamps I in a circular path andpast the work receiving and releasing position 8. The upper carriedthereby is then released and another upper placed in the clamp to becarried about the circular path, it being understood that sufficienttime is consumed during a single revolution of the wheel 5 to permitsetting of the cement or glue so that under ordinary circumstances, theupper may be released from the clamp after one revolution of the wheel 5andthe parts will then be secured.

Referring particularly to Figures 4, 5 and 6, the clamps I comprise asuitable casting having a bifurcated portion forming the legs 9 and II.The lower leg II is provided with a table I2 adapted to support thework. The table l2 may preferably be' covered over with a suitablecovering such as, for instance, a layer of leather I3 suitably securedthereto. With the leg II and its adjunct table l2 shaped and arranged asshown, it is apparent that a completely closed shoe upper may be drapedthereover, as shown in the broken lines at IUI in Figure 3. The upperleg 9 is provided with a bore l4 for slidably receiving a cylindricalshank l5. The shank I5 is provided with a flange I6 at the upper endthereof, so disposed as to limit the downward movement of the shank to apredetermined position, as will be later described. The shank I5'carriesat its opposite end, a head I! which is provided on its bottom face witha recessed portion I8 and is covered over with a suitable diaphragm IQof any flexible material such as, for instance, leather. The diaphragmI9 is secured to the head I'I around the edges thereof by any suitabledevice such as, for instance, a ring 2 I, and suitable fasteningelements such as screws 22. It is thus apparent that the recessedportion I8 being covered over by an air-tight diaphragm such as I9,forms an air chamber which upon the application of pressure therewithinwill cause the diaphragm l3 to be expanded outwardly in the direction ofthe table l2. A suitable connection such as a nipple 23 is provided forconnecting the air chamber I8 with a source of air pressure and asuitable intake valve such as 24 is provided for controlling theadmission of compressed air to the air chamber. Likewise, an exhaustvalve 25 of any suitable type is provided. The operation of therespective valves will be more fully described hereinafter.

It is apparent that the shank [5 with the head [1 is movable verticallythrough the bore M to vary the distance between the head I! and thetable I 2, as illustrated in the dotted line, Figure 6. Any suitabledevice may be provided for preventing relative rotation between theshank I5 and the bore I4, such as, for instance, a pin 26 provided atthe rear of the head I! for cooperation with a groove 21 in the casting.On its upper face, the head I1 is provided with a boss 28 for.

loosely receiving a pin 29, which latter is carried by a lever 3I. Thelever 3| is journaled for rotation upon a pin 32 carried by the casting.It is thus apparent that when the head I1 is moved vertically relativeto the casting and between its dotted and full line position illustratedin Figure 6, the lever 31 will pivot about pins 26 and 32.

A bell crank lever 33 is provided and preferably rigidly secured to thepin 32, so that upon movement of the lever 33, the pin 32 is rotatedwithin its bearing in the casting. One arm of the bell crank lever isprovided with a knob 34, disposed to engage and cooperate with asuitable clamp regulating mechanism to be hereinafter more fullydescribed. The other leg of the bell crank lever 33 is provided with apin 35, extending inwardly therefrom and disposed to engage the undersurface of the lever 3| when the bell crank lever 33'is rotated in aclockwise direction. It is thus apparent that when the bell crank lever33 is rotated sufficiently to bring the pin 35 in contact with the lowersurface of the lever 3| and the movement of the bell crank lever 33continued after such engagement, the latter will be effective to raisethe head I I. It may here be pointed out that the shank I5 and the headI! are preferably made of sufficient weight that they will tend toassume their lowermost position, illustrated in full lines in Figure 6,under the action of gravity, but itis within the scope of this inventionto provide any suitable means such as, for instance, a spring forpositively biasing the head I! into its lowermost position. Accord-2149,5921 why, the positionor 'thehead n may be regula'ted by'moving thebell cranklever '33 through the zone a, near the dotted line positionillustrated iii Figure 6.

tion is present to prevent the movement of the 'bar 38 toward the leftupon application of a force upwardly against the head ll, so that theportion 31 cooperating with the slot 36 forms in effect a latch formaintaining the head l! in its lowermost position andto prevent upwardmovement thereof in consequence to the application of a pressure tendingto force the head I! upwardly. The bell crank lever 33 is provided witha suitable lug 42 disposed in such position that it wiil engage a pin 43extending from the bar 38 substantially at the same time that pinengages the lower portion of lever 3|, upon movement of the bell cranklever 33. It is thus apparent that when the bell crank lever 33 is movedin a clockwise direction as seen in Figure 6, and in the vicinity of thedotted line position there shown,

the lug 42 will be effective to move the pin 43 and bar 38 toward theright thereby releasing the latch at 31, and consequently permitting theupward movement of the head I! in consequence of a further movement ofthe bell crank lever 33.

As pointed out above, the bell crank lever 33, is

rigidly mounted on the shaft 32 which extends through the casting beingjournaled for rotation therein. A cam member 44 is rigidly mounted onthe pin 32 on the oppositeside of the casting from the bell crank lever33, so that it is apparent that the cam 44 will be rotated with the bellcrank lever 33 about the pin 32 as an axis. A suitable spring 45 may beprovided in engagement with the cam member 44, and having its oppositeend anchored to the casting at 46, is effective to bias the cam memberand the bell crank lever 33 into the position shown in the full lines ofFigures 5 and 6.

A pedestal 41 is mounted upon the head I! and is preferably adjustablerelative thereto by any suitable arrangement such as, for instance, anut 48. At the top of the pedestal 41, a lever 49 is pivotally mountedand the opposite end of the lever 49 is disposed for engagement with thecam member 44 when the head I! and its adjunct parts are at or neartheir lowermost position, as illustrated in Figure 5. It is apparent,however, that when the head I! and its adjunct parts are raised to thedotted line position illustrated in Figure 6, the lever 49 will becarried upwardly therewith, so that the outer end thereof is lifted outof engagement with the cam 44. Intermediate the ends of the lever 49, astem 5| is pivotally mounted for operating the intake valve 24, and itmay be pointed out that when the parts are in the position shown inFigure 5, that is, with the head I! in its lowermost position and thebell crank lever 33 at rest under the action of spring 45, the intakevalve 24 is in this embodiment then in its open position. An operatingstem 52 for the exhaust valve 25 is disposed for engagement with thelower surface of the lever 49, and it may be pointed out that when theparts are in the position illustrated in Figure 5, the exhaust valve 25is preferably in its closed position. A spring 53 of any suitable typeis preferably provided for biasing the lever 49 in a direction tendingto open the exhaust valve. For the purpose of illustration, the spring53 is shown as a contractile spring anchored at one end 'to the head l'land engaging at its other end the lever 49. It is thus apparent thatwhen the head I! with its adjunct parts has been moved into its raisedposition, so that the extreme end of the lever 49 has been moved out ofengagement with the cam 44, the spring 53 will then operate to close theintake valve 24 and maintain the exhaust valve 25 in its open position.

It may here be pointed out that the arrangemerit of the variousoperating parts in the illustrative embodiment, illustrated in thedrawings, is such that a substantial movement of the bell crank lever 33is possible without releasing the latch 31 and raising the head [1, andconsequently, it is possible to rotate the cam 44 through an angle ofalmost 45 and thereby manipulate the valves 24 and 25 to regulate thepressure on the diaphragm I9 without releasing the latch 31..

Upon movement of the wheel 5 in a clockwise direction as seen in Figure1, it is desirable that the respective clamps T be actuated into theiropen position in reaching the station 8, as hereinbefore pointed out,and accordingly, it is desirable to provide suitable means for engagingthe lug 34 for the bell crank lever 33 on each of the clamps as theynear the position 8, it being recalled that when the bell crank lever 33is moved sufficiently in a clockwise direction, the latch 3! will beactuated to release the head I! and permit the pin 35 to raise the samethrough lever 3|. A device for engaging the lug 34 of the bell cranklever 33 as it approaches the work receiving position 8, may consist inany suitable z obstruction in the path of the lug 34, but for thepurpose of illustration, a suitable mechanism, shown more particularlyin Figures 7 and 8, has been provided for accomplishing this and otherfunctions in cooperation with the bell crank lever I 33. A suitablebracket 54 is mounted upon one of the upper horizontal members 2 andextends inwardly therefrom in the direction of the wheel 5. The bracket54 is provided with a pair of bosses 55 extending upwardly therefrom andin spaced relation to each other. Pivotally supported between therespective bosses 55, is an arm 56 which extends therefrom in adirection toward the wheel 5 and has its outer end 5! disposed in thepath of the lugs 34 on the bell crank levers 33 of the respective clamps'l. The arm 55 is mounted for rocking upon a shaft 58 carried by thebosses 55 and the shaft 58 is surrounded by a suitable coil spring suchas 59, anchored at one end of the bracket 54, and having its other endsecured at 611 to the arm 56. It is thus apparent that the spring 59 iseffective to bias the arm 56 in a counterclockwise direction, as seen inFigure '7, and the movement of the arm 55 in this direction is limitedby a suitable stop pin 6| which may be adjustable to the positiondesired.

Since as it is pointed out above, the bell crank lever 33 of therespective clamps is continuously biased in a counterclockwisedirection, as seen in Figure 6, the tendency will be for the bell cranklever 33 to assume its normal position upon release of the lug 34 fromthe end 5! of the arm 56. Similarly, upon rocking of the arm 56, so

that the end thereof is carried upwardly approaching the dotted lineposition illustrated in Figure '7, the bell crank lever 33 will followtherebehind under the action of spring 45, so that when the end 41 oflever 56 is engaged with the knob 34 of a particular clamp, slightmovements of the arm 56 will cause a corresponding movement in the clampengaged. Accordingly, when the arm 56 is rocked about its pivot 58, itsmovement in the zone adjacent the position shown in full lines, will beeffective to cause a corresponding movement of the head I] vertically.Likewise, when the arm 56 is rocked about its pivot in positionsapproaching the dotted line position. of Figure '7, the bell crank lever33 in engagement therewith will have been sufliciently re leased to havepermitted the head I! to drop into its lowermost position so thatrocking of the arm 56 is effective to regulate the relative position ofvalves 24 and 25, it being understood that when the arm 56 is rockedinto an extreme position in the clockwise direction, as seen in Figure'7, the end 5'! thereof will be moved a sufficient distance laterally toentirely release the knob 34 of the particular clamp which had been inengagement therewith, so that the normal position of the clamp partswill be assumed in which the head I! is lowered and latched, the: intakevalve 24 is opened and the exhaust valve 25 is closed.

Anysuitable device such as, for instance, a treadle 62 may be providedfor rocking the arm 56 to consequently control the position of thevarious parts of the clamp which is in engagementtherewith. The treadle62 may be pivotally mounted such as at 63, and is preferably providedintermediate its end with a vertically extending link 64. At the upperend of the link 64, a suitable tang 65 is provided for releasablyengaging the arm 56. A suitable guideway such as, for instance 66, ispreferably provided in the bracket 54 for guiding the movement of thetang 65. In the illustrative embodiment shown in the drawings, theguideway 66 comprises a slot which is adapted to slidably receive thetang 65. One face of the slot 66 is recessed to receive a slidabletongue 61 carried by the arm 56 and a spring 68 is preferably providedfor maintaining the tongue 61 in its extended position. A spring 69 ispreferably provided for maintaining the treadle 62 in its upper positionand in this illustrative embodiment, the spring 69 is anchored at oneend to the bracket 54, and at its opposite end to a suitable clamp suchas H, for engaging the link 64 intermediate its ends. From theconstruction just described, it is apparent that when the treadle 62 ismoved downwardly from its normal position, the tang 65, being inengagement with the tongue 61, will also move downwardly carrying withit the tongue 61, so that the arm 56 is rocked in a clockwise directionabout its shaft 58. It is apparent that both the springs 59 and 69 areeffective to bias the treadle, link and tang toward their uppermostposition so that any rocking of the arm 56 must be in opposition to theforces of the springs 59 and 69. When the treadle is sufiicientlydepressed to move the tang 65 downwardly to its dotted line position,illustrated in Figure 7, it is apparent that the tongue 61 will bereleased thereby and under the action of spring 56, the arm 56 will bedrawn back into the position illustrated in full lines in Figure 7. Uponrelease of the treadle, however, the spring 66 will operate to draw thelink 64 and the tang 65 upwardly to a position in which the inclinedfaces of the tang 65 and the tongue 61 cooperate to compress the spring68 and permit the tang -65 to move into its uppermost position past thetongue 61.

As pointed out hereinbefore, the ratchet wheel 16 is rigidly mountedupon the shaft 4 for rotation with the wheel 5, and intermediate theratchet wheel 6 and the wheel 5 is rockably mounted upon the shaft 4 anarm 12 having at its outer end a pawl 13 for cooperative engage- :mentwith the teeth of the ratchet wheel 6. It may here be pointed out thatthe ratchet wheel 6 is preferably provided with a number of teethcorresponding to the number of clamps which are disposed about theperiphery of the wheel 5, so that when the pawl 73 operates to advancethe ratchet wheel 6 one notch, then likewise will the wheel 5 be rotateda distance equal to the spacing of the successive clamp i. The outer endof the arm i2 is connectedby a suitable rod M with an eccentric 15. Theeccentric I5 is mounted upon a shaft 1'6, suitably journaled in ahousing H, within which is provided any well-known type of worm geardriving mechanism therefor. Associated'with the eccentric '15 is a cam18, the periphery of which is, with the exception of the notch-likeportion 16, concentric with the shaft 36. A bell crank lever BI ispivotally mounted at 82 and carries at one end a follower 63, disposedfor engagement with the cam E8. The bell crank lever 8! is rigidlysecured to the shaft 82 by any suitable means such as, for instance, aspline connection, and likewise a suitable clutch operating device suchas 84 is secured to the shaft 82 for movement with the bell crank lever.In the preferred embodiment of this invention, a spring 85 is providedfor biasing the parts just described in a counterclockwise direction sothat when the cam 18 has rotated to a position in which the notch '16comes adjacent the follower 83, the spring 85 will be effective to forcethe follower 66 into the notch, thereby permitting sufficient movementof the bell crank lever and the clutch operating arm 86 to permitrelease of the clutch. Any suitable driving device such as, forinstance, a motor 86, is, of course, provided.

The other arm 8'! of the bell crank lever 8! m connected by a suitableflexible connection such as, for instance, a chain 88, with the treadle62. It may here be pointed out that the length of the chain 88 ispreferably sufiicient to permit a substantial movement of the-treadle 62before the chain is sufficiently tightened to actuate the bell cranklever 8|. By this arrangement, the treadle 62 is not effective toactuate the bell crank lever 8! until moved downwardly to an extremeposition. When the treadle 62 is moved downwardly to an extremeposition, it will be recalled that the tang 65 is drawn downwardly,carrying with it the tongue 61, so that the arm 56 is rockedsufficiently to release the knob 34- of the bell crank lever 33 withwhich it had previously been in engagement and at the same time, duringthe latter part of the downward movement of the treadle 62, the bellcrank lever 8| will be rocked in a clockwise direction about its pivot62, so that the clutch device 64 is thrown into engagement to effect aconnection between the motor 66 and the worm gear driving mechanism forthe shaft 76. When the clutch device 84 is moved into its engagedposition, it is apparent that the follower 83 on the bell crank lever BIis moved out of the notch 19, and it is further apparent that uponengagement of the clutch, the shaft i6 will be rotated to move the cam'58 relative to the follower 83, so that the treadle 62 may then berepanded under pressure of compressed air w1th1n leased and the follower33will ride'upon-the cam 18maintaining theclutch device 84 in its en,-gaged position until a complete revolution of shaft 19 has brought thenotch 19 adjacent the follower 83 where the spring 85 will be effectiveto force the bell crank lever 8| in a counterclockwise direction, sothat the follower 83 is nested again in the notch '59 and the clutch isdisengaged. It is thus apparent that once the machine is setintooperation, the operation continues for only one revolution of shaft16, which, in fact, resultsin the advance of the ratchet Wheel 6 aSingle notch, and, accordingly, the wheel 5 is advanced through an angleequal to the angular distance between the successive clamps 1.

A suitable locking pawl 89 is preferably pro- Vided for engaging theteeth of the ratchet wheel 6 to prevent it from moving backwardly duringthe downward movement of the pawl 13.

Since the diaphragm I9 is adapted to be exthe air chamber defined by therecess 18 in head l1, it is necessary that a source of compressed air orother suitable fluid be obtainable. Accordingly, a compressor 9 I, whichmay be of any suitable andwell-known type, is provided. An air reservoir92 is in accordance with the usual practice provided for associationwith the compressor 9|, and any suitable type of pressure gage 93 ispreferably associated therewith. In accordance With the preferredembodiment of this invention,

. reservoir 92.

*for conducting the compressed air away from the reservoir 92. Anysuitable type of connection such as, for instance, 95, is provided forconnecting the conduit 94 with the shaft 4, and for maintaining anair-tight connection between these respective elements during rotationof the latter. The shaft 4 is preferably bored to provide a conduittherethrough for the compressed air from the reservoir 92, and asuitable outlet from the bore 96 is essentially provided at or near thehub 95. A suitable conduit is provided for connecting the outletreferred to with a supply conduit 91 which is preferably disposed nearthe outer periphery of the wheel 5 and in a convenient location forpermitting the connection of the supply pipes 98 for therespectiveclamps; it being understood that each of the respective supply pipes 98is connected with the nipple 23 of the corresponding clamp.

An auxiliary clamp control arm 99 is preferably provided to insure theopening of the intake valve 24'after the bell crank lever 33 has beenreleased from the end 51 of arm 56. The arm 99 may advantageously bemounted upon bracket 54 and extends upwardly and outwardly therefrom sothat the upper end thereof, which may be provided with a suitableabutment I99, is disposed for engagement withv knob 34 on bell cranklever 33, if, as under some conditions, the bell crank lever has notbeen moved-into the position illustrated by full lines in Figure 6 bythe action of spring 45. It is thus apparent that the only time when thearm 99 comes into operation is under such a circumstance that for somereason the particular bell crarnk lever 33 has not movedinto its normalposition under the action of its spring 45.

From the foregoing description, it is apparent that whena particularclamp 1 has reached the workreceiving position at 8, and the wheel 5 isat rest, the valves 24.and -have been actuated to release the pressureon the diaphragm l9, and head I! has been elevated to its raisedposition by contact of the end 51 of arm 56 with the knob 34 on the bellcrank lever 33 of the particular clamp which is now open and in itswork-receiving position. An operator for the machine is stationed inposition for conveniently placing the upper parts, which have beenpreviously cemented together and are now to be retained in their'properalined positions during the setting of the cement, in position withinthe clamp 1; it being understood that the operator is preferably sostationed that the treadle 62 may be readily operated by his foot. Thus,when the wheel 5 is rotated to bring a particular clamp intowork-receiving position and the clamp is raised to release the work justprior to the time when the wheel 5 is arrested, the operator may thenremove the work from .the clamp in its workreceivingposition; it beingunderstood that the particular piece of work which is removed has beenheld in position within the particular clamp during an entire revolutionof the wheel 5', so that the cement or glue has had sufilcient time to,set and the upper partsmay now be removed without danger of thembecoming relatively displaced.

The clamp is now in position for the reception of an entirely new pieceof work which consists usually in a plurality of separate pieces whichgo to form apcompleted upper, such as, for instance, the quarters andvamp; it being understood that they have previously received anapplication of cement or glue with which it is desired to securethemrtogether. The operator places the respective upper parts upon thesupport I2 and. adjusts them until they are brought into the desiredrelation at which time the treadle 62 may be operated to raise the end51 of, arm 55, as hereinbefore described, thereby permitting a clockwisemovement of the bell crank lever 33, and consequently, permitting thehead. I! to be lowered an, amount corresponding to the movement of thetreadle 62, all of which has beenlmorespecifically describedhereinbefore. In this regard, it may be particularly pointed out thatwhen the, head "is in its lowermost position, it isrpreferably spacedslightly. away from the support [2, so that therewill be permitted aslight movement of the upper partsrelative to the clamp even after the,head IT has reached its lowermost position. By reference to. Figs. 6.and 2, it will be observed that the movement of'the treadle 62 and thecorresponding movement of the bell crank lever 33 is effective duringmovement in the zone designated as ato raise and lower thehead l1, andthat movement of the treadle 62 and bell crank lever 33 throughoutthezone designated as b is effective to .manipulate the valves 24 and25. When the operator has placed the upper parts upon the support l2,the bell crank lever is moved in accordance with a correspondingmovementof the. treadle 62 to, drop the head l1. It will be recalled, however,that the head l1 when in its lowermost position is sufficientlyspaced'from the support l2 topermit. a slight movement of the upperparts relative to the clamp, so that even after the head has been:dropped, the operator may further-adjust the upperparts before the airpressure is admitted to the chamber I 8, so that the diaphragm l9isexpanded against the upper parts to positively hold them in position.

When theoperator issatisfied that the upper parts are in the desiredposition the treadle 62 is moved downwardly into the zone designated inFig. 2 as 1) thereby effecting a corresponding movement of the bellcrank lever 33 in the zone I) and actuating the intake valve 24 into itsopen position to admit the compressed air from reservoir 92 into airchamber l8. The treadle 62 may be oscillated thru the zone designated asb to effect a corresponding movement ofthe bell crank lever thru zone I)and thereby manipulate the intake and exhaust valves 24 and 25,respectively, to expand and collapse the diaphragm l9 thereby varyingthe pressure on the upper parts Ifll until the finally desired alinementof the upper parts relative to each other and a support I2 is obtained.When the desired alinement is obtained the treadle 62 may be movedfurther downwardly into the zone 0 causing a corresponding movement ofthe arm 56 raising the end 51 thereof, substantially into the dottedline position illustrated in Fig. 7, where it will be recalled the end51 is sufficiently displaced laterally from the clamp to release theknob 34 on the bell crank I lever 33 and upon such release the clampparts will assume the position illustrated in Fig. 11

with the diaphragm l9 expanded against the upper parts l0! supported bythe supporting table l2 as illustrated also in Fig. 3. At the time thetreadle 62 is moved downwardly into the zone designated as c and afterthe arm 56 has been rocked sufiiciently to release the knob 54 on thebell crank lever 33, the chain 88 will, as hereinbefore described,become tightened so that further downward movement of the treadle 62will effect rocking movement of the bell crank lever 8| with its shaft82. As hereinbefore pointed out when the bell crank lever BI is rockedin a clockwise direction as seen in Fig. 9, by application of force ofthe treadle 62 thru chain 88, the follower 83 is raised from thedepression 19 and the clutch 84 is moved into its engaging position toeffect a connection between the driving motor 86 and the driven shaft16. Upon the completion of such a positive connection between thedriving motor 86 and the shaft 16 the latter will be rotatedsuificiently to move the depression 19 thru an angle sufficient to bringit out of alinement with the follower 83 and the treadle 62 may then bereleased without interfering with the operation of the clutch. Uponrotation of the shaft 16 it is apparent that the eccentric 15 will beoperated to oscillate the'pitman rod 14 in a substantially verticaldirection. Upon such oscillation in the longitudinal direction of thepitman rod 14, the arm 12 will be rocked on shaft 4 which rocking, it isapparent, will be effective during the upward movement of the rod 14(when the pawl 13 is in engagement with the ratchet wheel 6) to effect arotation of the wheel 5 in a clockwise direction as seen in Fig. 1. Itmay be here pointed out that the throw of the eccentric I5 is preferablysuch as to cause an angular movement of the arm 12 corresponding to thedistance between successive teeth of the ratchet wheel 6 upon eachrevolution of the eccentric 15. Thus when the pitman rod 14 is moved inan upward direction the mechanism is effective to advance the wheel 5 adistance corresponding to the angular displacement of the teeth on theratchet wheel 6 and also corresponding to the displacement of thesuccessive clamps I while upon downward movement of the pitman rod 14the arm 12 is rocked in a counterclockwise direction around shaft 4 inorder to bring the pawl 1 back into the next operative position.

When the clutch connection has been inad and the pitman rod 14 startedupon its upward movement to effect an angular movement of the wheel 5,the clamp l which has been adjacent the work receiving station is movedaway from the work receiving station and the next successive clamp isadvanced into that position. When the next successive clamp is advancedinto the work receiving position, the treadle 62 has then been releasedby the operator so that the arm 56 has assumed its horizontal positionillustrated in full lines in Fig. 7 so that the end 51 thereof isdisposed for contact with the lug 34 on the crank arm 33 of the nextsucceeding clamp. Even in the event that the operator has not releasedthe treadle 62 by the time the advancing clamp has moved into positionadjacent the end 51 of arm 56, the parts are preferably so related thatthe tongue 61' will be released by tang 65 before the treadle 62 hasbeen effective to engage the clutch so that in spite of the fact thatthe operator did not take his foot off the treadle 62 immediately uponinitiation of the clutch, the arm 56, will have been released and underthe force of:

spring 58 will have assumed a position in which the end 51 thereof, willbe disposed in the path of the lug 34 of the advancing clamp.

From an inspection of the various figures, it is,

apparent that the lug 34 on bell crank lever 33 of an advancing clampcomes into engagement with the end 51 of the arm 56 before the clamp hasreached its work receiving position and before the eccentric 15 has madeone-half revolution and, it is thus apparent that when the end 51 ofarm,

56 engages the bell crank lever 33 of an advancing crank furthermovement of the wheel 5 subsequent to such engagement will be elfectiveto rotate the bell crank 33 in a clockwise direction as seen in Fig. 6for instance, thereby first closing intake valve 24 and next releasingexhaust valve 25 during the movement of the bell crank lever 33 thruzone b; and when the wheel 5 has advanced sufficiently the bell cranklever 33 will be moved into zone a whereupon the further movement willrelease the latch 35 and move the head I] into its raised positionillustrated in dotted lines in Fig. 6. The parts will preferably bearranged so that when the bell crank lever 33 has been suiiicientlyrotated to raise the head I1 into uppermost position, then the shaft 16with cam 18 will have made one-half revolution so that the depression 19will be diametrically opposite its original position and furthermovement of the shaft 76 will be effective to retract the pawl 13 untilit falls into engagement with the next successive ratchet tooth. Whenthe pawl falls into engagement with the next successive ratchet tooththe parts are so positioned that the notch 19 will come into positionadjacent the follower 83 whereby the spring 85 will be effective to rockthe bell crank lever 8i and its shaft 82 in a counter-clockwisedirection as seen in Fig. 9 and force the follower 83 into thedepression 19 thereby permitting release of the clutch.

Upon completion of this cycle of events, it is apparent that anotherclamp has been moved into work-receiving position and that the clamp hasbeen released so that the operator may readily remove the upper partsIDI therefrom, they having been retained in position for sufiicient timeto permit setting of the cement so that they may now be removed. Theoperator removes the upper parts upon which the cement has set andreplaces them with other parts which are to be clamped during thesetting of the cement thereon, as hereinbefore described.

It is apparent that many modifications of this invention will presentthemselves to those skilled in the art without departing from the spiritthereof, and accordingly it is to be distinctly understood that theforegoing description and the illustrations in the accompanying drawingsare merely an exemp-lification of a preferred embodiment of thisinvention. Furthermore, it is to be distinctly understood that thisinvention is not limited to the specific details of constructionhereinbefore described and that such modifications as are made withoutdeparting from the spirit of this invention and the use of specificsub-combinations of lements are, although not specifically describedhereinbefore, contemplated by and within the scope of the appendedclaims.

Having thus described the invention, what is claimed is:

1. A machine of the character described, comprising, means forsupporting upper parts, a head movable toward and away from saidsupporting means, means for latching the head against movement, anexpansible diaphragm on the head for compressing the upper parts againstthe support, and means operable only when the head is latched forcontrolling the diaphragm without unlatching the head.

2. A machine of the character described, comprising, means forsupporting upper parts said supporting means being constructed andarranged to have a closed shoe upper draped thereover, a head movabletoward and away from said supporting means, means for latching the headagainst movement, an expansible diaphragm on the head for compressingthe upper parts against the support, and unitary means movable in onezone for controlling the latching of the head and in another zone forseparately controlling the expansion of the diaphragm.

3. A machine of the character described, comprising, means iorsupporting upper parts, a head movable toward and away from saidsupporting means, an expansible diaphragm on the head for compressingthe upper parts against the support, means carried by the head forcontrolling the eX- pansion of the diaphragm and means carried by thesupp-art for operating the control means.

4. A machine of the character described, comprising, means forsupporting upper parts, a head movable toward and away from saidsupporting means, an expansible diaphragm on the head for compressingthe upper parts against the support, means carried by the head forcontrolling the expansion of the diaphragm and operating means carriedby the support for operating the control means disposed to engage thecontrol means when the head is moved toward the support.

5. A machine of the character described, comprising, means forsupporting upper parts, a head movable toward and away from saidsupporting means, means for latching the head against movement, anexpansible diaphragm on the head for compressing the upper parts againstthe support, means carried by the head for controlling the expansion ofthe diaphragm and operating means carried by the support disposed toengage the control means when the head is latched against movement.

6. A machine of the character described, comprising, a carrier movableabout a circuitous path, a plurality of clamps on the carrier,stationary means operable to open the respective clamps,

and means for stopping the carrier concomitantly with the opening of aclamp.

7. A machine of the character described, comprising, a carrier movableabout a circuitous path, a plurality of clamps on the carrier, and

means operable in one zone to control a clamp, and into another positionto start the carrier.

8. A machine of the character described, comprising, a carrier movableabout a circuitous path, a plurality of normally closed clamps on thecarrier, stationary means disposed to engage the respective clamps toopen the same, and means for actuating said stationary means to avariety of positions to regulate the clamps engaged therewith.

9. A machine of the character described, comprising, a carrier movableabout a circuitous path, a plurality of normally closed clamps on thecarrier, stationary means disposed to engage the respective clamps toopen the same, said stationary means being movable to regulate theclamps engaged therewith, and means for advancing the carrier uponmovement of said stationary means out of engagement with the clamp.

10. A machine of the character described, comprising, a carrier movableabout a circuitous path, a clamp on the carrier having a head movable toengage the work, and a diaphragm expansible to compress the work,stationary means disposed to release the work, and cooperating meansoperable in one zone to move the head, operable in another zone tocontrol the diaphragm and operable to an extreme position to advance thecarrier.

11. A machine of the character described, comprising, a carrier movableabout a circuitous path, a clamp on the carrier having a head movable toengage the work, and a diaphragm expansible to compress the work, meansmovable in one zone to control the diaphragm and in another zone to movethe head, and a latch for the head disposed to be actuated by said meansintermediate said zones.

12. A machine of the character described, comprising, a carrier movableabout a circuitous path, a normally closed clamp on the carrier having ahead movable to engage the work, and a diaphragm expansible to compressthe work, stationary means disposed to engage the clamp to open thesame, said means being releasable to permit closure of the clamp, andimmovable stationary means to engage the clamp to insure closurethereof.

13. A machine of the character described, comprising, a carrier movableabout a circuitous path, a plurality of clamps on the carrier, each ofsaid clamps having a work support and inflatable cushion means forapplying pressure to the work on the support, means for maintainingconstant inflating pressure on the cushions of each of said clampsduring movement of the carrier, and stationary means for releasing thepressure on the clamps adjacent thereto without disturbing the pressureon the remaining clamps.

14. A machine of the character described, comprising, a carrier movableabout a circuitous path, a plurality of clamps on the carrier,stationary means disposed to engage and open the respective clamps asthey are moved thereby, said means being movable to regulate said clampswhile in engagement therewith and being releasable to close said clamps,and means operable upon release of said last means to advance thecarrier until a succeeding clamp is engaged by said first named means.

til

ranged to have a closed shoe upper draped thereover, a clamping membercooperating with said supporting members, said members being relativelymovable between open and closed positions, one of said members having adiaphragm distendable against the other member, means for moving saidmembers between open and closed positions, and means operative only whensaid members are in closed position to selectively control theapplication and release of fluid pressure 10 on said diaphragm withoutopening said members.

BENJAMIN W. FREEMAN.

